US11173915B2 - Hybrid vehicle drive apparatus - Google Patents

Hybrid vehicle drive apparatus Download PDF

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Publication number
US11173915B2
US11173915B2 US15/931,587 US202015931587A US11173915B2 US 11173915 B2 US11173915 B2 US 11173915B2 US 202015931587 A US202015931587 A US 202015931587A US 11173915 B2 US11173915 B2 US 11173915B2
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mode
motor
generator
rotor
drive
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US20200369142A1 (en
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Takahiro KASAHARA
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/184—Preventing damage resulting from overload or excessive wear of the driveline
    • B60W30/1843—Overheating of driveline components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K2006/381—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches characterized by driveline brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/08—Electric propulsion units
    • B60W2510/081—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/10—Change speed gearings
    • B60W2710/1005—Transmission ratio engaged
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • This invention relates to a drive apparatus of a hybrid vehicle.
  • the apparatus described in JP6015410B includes a clutch and brake connected to the planetary gear mechanism, switches a drive mode to one of a HV mode driven by power of the engine and the second motor-generator, an EV mode driven by power of the second motor-generator after the engine is stopped from the HV mode, and a start mode in which the engine is restarted from the EV mode, etc.
  • the engine drives in the HV mode, while the engine is driven in the start mode. Therefore, when the planetary gear mechanism is configured by helical gears, a direction of an axial torque acting through the planetary gear mechanism in the HV mode is different from a direction of an axial torque acting through the planetary gear mechanism in the start mode. As a result, in the start mode, rotational members arranged adjacently in the axial direction contact, and may generate heat by frictional sliding.
  • An aspect of the present invention is a drive apparatus of a hybrid vehicle including: an internal combustion engine;
  • a first motor-generator a planetary gear mechanism including helical gears and connected to the internal combustion engine and the first motor-generator; a first rotor to which a torque output from the planetary gear mechanism is input; a second rotor arranged rotatably relative to the first motor and adjacent to the first rotor in an axial direction; a clutch mechanism configured to integrally engage or disengage the first rotor and the second rotor; a component configured to generate a power transmission path transmitting a torque output from the second rotor to a drive wheel; a second motor-generator connected to the power transmission path; and an electronic control unit including a microprocessor configured to perform selecting a drive mode from among a plurality of drive modes and controlling the internal combustion engine, the first motor-generator, the second motor-generator, and the clutch mechanism in accordance with the drive mode.
  • the plurality of drive modes include a first mode in which the internal combustion engine drives the planetary gear mechanism, a second mode in which the internal combustion engine is stopped, and a third mode in which the internal combustion engine is driven through the planetary gear mechanism, the first rotor is arranged movably in the axial direction so as to separate from the second rotor by a first load acting through the planetary gear mechanism toward a first direction in the axial direction when the internal combustion engine drives and so as to approach the second rotor by a second load acting through the planetary gear toward a second direction opposite to the first direction when the internal combustion engine is driven, and the microprocessor is configured to perform the controlling including controlling the first motor-generator and the clutch mechanism so that the first motor-generator generates a regenerative energy when the drive mode is switched from the first mode to the second mode, and then so that the clutch mechanism is engaged and the first motor-generator generates a drive torque when the drive mode is switched to the third mode.
  • FIG. 1 is a diagram showing schematically a configuration overview of a drive apparatus of a hybrid vehicle according to an embodiment of the invention
  • FIG. 2 is a diagram an example of drive modes implemented by the drive apparatus of the hybrid vehicle according to the embodiment of the invention.
  • FIG. 3 is a skeleton diagram showing a flow of torque transmission in EV mode in the drive apparatus of FIG. 1 ;
  • FIG. 4 is a skeleton diagram showing a flow of torque transmission in W motor mode in the drive apparatus of FIG. 1 ;
  • FIG. 5 is a skeleton diagram showing a flow of torque transmission in series mode in the drive apparatus of FIG. 1 ;
  • FIG. 6 is a skeleton diagram showing a flow of torque transmission in HV low mode in the drive apparatus of FIG. 1 ;
  • FIG. 7 is a skeleton diagram showing a flow of torque transmission in HV high mode in the drive apparatus of FIG. 1 ;
  • FIG. 8A is an alignment chart showing an example of operation in HV low mode
  • FIG. 8B is an alignment chart showing an example of operation in EV mode
  • FIG. 8C is an alignment chart showing an example of operation in start mode
  • FIG. 9 is a cross-sectional diagram showing main components of the drive apparatus of the hybrid vehicle according to the embodiment of the invention.
  • FIG. 10 is a flowchart illustrating an example of processing performed by an ECU in FIG. 1 ;
  • FIG. 11A is an alignment chart showing an example of an operation when switching from HV low mode to regeneration or EV mode in the drive apparatus of the hybrid vehicle according to the embodiment of the invention.
  • FIG. 11B is an alignment chart showing an modification of FIG. 11A ;
  • FIG. 12A is an alignment chart showing an example of an operation when switching from HV high mode to regeneration or EV mode in the drive apparatus of the hybrid vehicle according to the embodiment of the invention.
  • FIG. 12B is an alignment chart showing an modification of FIG. 12A .
  • FIG. 1 is a diagram showing schematically a configuration overview of a drive apparatus 100 according to the present embodiment.
  • the drive apparatus (drive unit) 100 includes an engine (ENG) 1 , first and second motor-generators (MG 1 and MG 2 ) 2 and 3 , a first planetary gear mechanism 10 for dividing motive power, and a second planetary gear mechanism 20 for changing speed ratio.
  • the drive apparatus 100 is mounted at front of a vehicle, and motive power of the drive apparatus 100 is transmitted to front wheels 101 .
  • the engine 1 is an internal combustion engine (e.g., gasoline engine) wherein intake air supplied through a throttle valve and fuel injected from an injector are mixed at an appropriate ratio and thereafter ignited by a sparkplug or the like to burn explosively and thereby generate rotational power.
  • a diesel engine or any of various other types of engine can be used instead of a gasoline engine.
  • Throttle valve opening, quantity of fuel injected from the injector (injection time and injection time period) and ignition time are, inter alia, controlled by a controller (ECU) 4 .
  • An output shaft 1 a of the engine 1 extends centered on axis CL 1 , and rotates around the axis CL 1 .
  • the engine 1 includes a one-way clutch so as to prevent the engine 1 from reversely rotating.
  • the first and second motor-generators 2 and 3 each has a substantially cylindrical rotor centered on axis CL 1 and a substantially cylindrical stator installed around the rotor and can function as a motor and as a generator. Namely, the rotors of the first and second motor-generators 2 and 3 are driven to rotate around the axis CL 1 by electric power supplied from a battery 6 through a power control unit (PCU) 5 to coils of the stators. In such case, the first and second motor-generators 2 and 3 function as motors.
  • PCU power control unit
  • the first and second motor-generators 2 and 3 when rotating shafts 2 a and 3 a of rotors of the first and second motor-generators 2 and 3 are driven by external forces, the first and second motor-generators 2 and 3 generate electric power that is applied through the power control unit 5 to charge the battery 6 .
  • the first and second motor-generators 2 and 3 function as generators.
  • the first motor-generator 2 functions chiefly as a generator and the second motor-generator 3 functions chiefly as a motor.
  • the power control unit 5 incorporates an inverter controlled by instructions from the controller 4 so as to individually control output torque or regenerative torque of the first motor-generator 2 and the second motor-generator 3 .
  • the first motor-generator 2 and the second motor-generator 3 are coaxially installed at spaced locations.
  • the first motor-generator 2 and second motor-generator 3 are, for example, housed in a common case 7 , and a space SP between them is enclosed by the case 7 .
  • the first motor-generator 2 and second motor-generator 3 can be housed in separate cases.
  • the first planetary gear mechanism 10 and second planetary gear mechanism 20 are installed in the space SP between the first motor-generator 2 and second motor-generator 3 . Specifically, the first planetary gear mechanism 10 is situated on the side of the first motor-generator 2 and the second planetary gear mechanism 20 on the side of the second motor-generator 3 .
  • the first planetary gear mechanism 10 includes a first sun gear 11 and a first ring gear 12 installed around the first sun gear 11 , both of which rotate around axis CL 1 , multiple circumferentially spaced first pinions (planetary gears) 13 installed between the first sun gear 11 and first ring gear 12 to mesh with these gears 11 and 12 , and a first carrier 14 that supports the first pinions 13 to be individually rotatable around their own axes and collectively revolvable around axis CL 1 .
  • the gears 11 to 13 of the first planetary gear mechanism 10 are configured by helical gears, respectively.
  • the second planetary gear mechanism 20 includes a second sun gear 21 and a second ring gear 22 installed around the second sun gear 21 , both of which rotate around axis CL 1 , multiple circumferentially spaced second pinions (planetary gears) 23 installed between the second sun gear 21 and second ring gear 22 to mesh with these gears 21 and 22 , and a second carrier 24 that supports the second pinions 23 to be individually rotatable around their own axes and collectively revolvable around axis CL 1 .
  • the gears 21 to 23 of the second planetary gear mechanism 20 are configured by helical gears, respectively.
  • the output shaft 1 a of the engine 1 is connected to the first carrier 14 , and power of the engine 1 is input to the first planetary gear mechanism 10 through the first carrier 14 .
  • power from the first motor-generator 2 is input to the engine 1 through the first planetary gear mechanism 10 .
  • the first sun gear 11 is connected to the rotating shaft 2 a of the rotor of the first motor-generator 2 , and the first sun gear 11 and first motor-generator 2 (rotor) rotate integrally.
  • the first ring gear 12 is connected to the second carrier 24 , and the first ring gear 12 and second carrier 24 rotate integrally.
  • the first planetary gear mechanism 10 can output power received from the first carrier 14 through the first sun gear 11 to the first motor-generator 2 and output power through the first ring gear 12 to the second carrier 24 on an axle (drive shaft) 57 side. In other words, it can dividedly output power from the engine 1 to the first motor-generator 2 and the second planetary gear mechanism 20 .
  • An axis CL 1 -centered substantially cylindrical outer drum 25 is provided radially outside the second ring gear 22 .
  • the second ring gear 22 is connected to and rotates integrally with the outer drum 25 .
  • a brake mechanism 30 is provided radially outward of the outer drum 25 .
  • the brake mechanism 30 is, for example, structured as a multi-plate wet brake including multiple radially extending plates (friction members) 31 arranged in axial direction and multiple radially extending disks (friction members) 32 arranged in axial direction (multiple illustration is omitted in the drawing).
  • the plates 31 and disks 32 are alternately arranged in axial direction.
  • the multiple plates 31 are circumferentially non-rotatably and axially movably engaged at their radial outer ends with the inner peripheral surface of the surrounding wall of the case 7 .
  • the multiple disks 32 rotate integrally with the outer drum 25 owing to their radially inner ends being engaged with outer peripheral surface of the outer drum 25 to be circumferentially non-rotatable and axially movable relative to the outer drum 25 .
  • a non-contact rotational speed sensor 35 for detecting rotational speed of the outer drum 25 is provided on inner peripheral surface of the case 7 to face outer peripheral surface of the outer drum 25 axially sideward of the brake mechanism 30 .
  • the brake mechanism 30 includes a spring (not shown) for applying biasing force acting to separate the plates 31 and disks 32 and thus release the disks 32 from the plates 31 , and a piston (not shown) for applying pushing force acting against the biasing force of the spring to engage the plates 31 and disks 32 .
  • the piston is driven by hydraulic pressure supplied through a hydraulic pressure control unit 8 .
  • the brake mechanism 30 configures a hydraulic actuator operated by hydraulic pressure.
  • An axis CL 1 -centered substantially cylindrical inner drum 26 is provided radially inward of and facing the outer drum 25 .
  • the second sun gear 21 is connected to an output shaft 27 of a second planetary gear mechanism 20 that extends along axis CL 1 and is connected to the inner drum 26 , whereby the second sun gear 21 , output shaft 27 and inner drum 26 rotate integrally.
  • a clutch mechanism 40 is provided between the outer drum 25 and the inner drum 26 .
  • the clutch mechanism 40 is, for example, structured as a multi-plate wet clutch including multiple radially extending plates (friction members) 41 arranged in axial direction and multiple radially extending disks (friction members) 42 arranged in axial direction (multiple illustration is omitted in the drawing).
  • the plates 41 and disks 42 are alternately arranged in axial direction.
  • the multiple plates 41 rotate integrally with the outer drum 25 owing to their radial outer ends being engaged with the inner peripheral surface of the outer drum 25 to be circumferentially non-rotatable and axially movable relative to the outer drum 25 .
  • the multiple disks 42 rotate integrally with the inner drum 26 owing to their radially inner ends being engaged with outer peripheral surface of the inner drum 26 to be circumferentially non-rotatable and axially movable relative to the inner drum 26 .
  • the clutch mechanism 40 includes a spring (not shown) for applying biasing force acting to separate the plates 41 and disks 42 and thus release the disks 42 from the plates 41 , and a piston (not shown) for applying pushing force acting against the biasing force of the spring to engage the plates 41 and disks 42 .
  • the piston is driven by hydraulic pressure supplied through the hydraulic pressure control unit 8 .
  • the clutch mechanism 40 configures a hydraulic actuator operated by hydraulic pressure.
  • the second planetary gear mechanism 20 , brake mechanism 30 and clutch mechanism 40 configure a speed change mechanism 70 that shifts rotation of the second carrier 24 between two speed stages (high and low) and outputs the shifted rotation from the output shaft 27 .
  • Torque transmission path from the first planetary gear mechanism 10 to the output shaft 27 of upstream of the one-way clutch 50 through the speed change mechanism 70 configures a first power transmission path 71 .
  • the output shaft 27 is connected through a one-way clutch (OWY) 50 to an output gear 51 centered on axis CL 1 .
  • the one-way clutch 50 allows forward rotation of the output gear 51 with respect to the output shaft 27 , i.e., relative rotation corresponding to vehicle forward direction, and prohibits rotation corresponding to vehicle reverse direction. In other words, when rotational speed of the output shaft 27 corresponding to vehicle forward direction is faster than rotational speed of the output gear 51 , the one-way clutch 50 locks, whereby the output shaft 27 and output gear 51 rotate integrally.
  • a rotating shaft 3 a of the rotor of the second motor-generator 3 is connected to the output gear 51 , so that the output gear 51 and the second motor-generator 3 (rotating shaft 3 a ) rotate integrally. Since the one-way clutch 50 is interposed between the output shaft 27 and the rotating shaft 3 a , forward relative rotation of the rotating shaft 3 a with respect to the output shaft 27 is allowed. In other words, when rotational speed of the second motor-generator 3 is faster than rotational speed of the output shaft 27 , the second motor-generator 3 efficiently rotates without torque of the output shaft 27 (second planetary gear mechanism 20 ) pulled back.
  • the one-way clutch 50 is installed radially inward of the rotating shaft 3 a . Since axial length of the drive apparatus 100 can therefore be minimized, a smaller drive apparatus 100 can be realized.
  • An oil pump (MOP) 61 is installed radially inward of the rotor of the second motor-generator 3 .
  • the oil pump 61 is connected to the output shaft 1 a of the engine 1 and driven by the engine 1 . Therefore, when the engine speed is greater than or equal to a predetermined speed, hydraulic pressure (engaging pressure) necessary for engaging the brake mechanism 30 and the clutch mechanism 40 is obtained from the oil pump 61 .
  • hydraulic pressure (engaging pressure) necessary for engaging the brake mechanism 30 and the clutch mechanism 40 is obtained from the oil pump 61 .
  • EOP electric pump
  • Torque transmitted to the counter shaft 52 is transmitted through a small-diameter gear 54 to a ring gear 56 of a differential unit 55 and further transmitted through the differential unit 55 to the left and right axles (drive shaft) 57 . Since this drives the front wheels 101 , the vehicle travels.
  • the rotating shaft 3 a , output gear 51 , large-diameter gear 53 , small-diameter gear 54 and differential unit 55 configure a second power transmission path 72 from the rotating shaft 3 a to the axles 57 .
  • the first and second power transmission paths 71 and 72 are connected with each other in series.
  • the hydraulic pressure control unit 8 includes electromagnetic valve, proportional electromagnetic valve, and other control valves actuated in accordance with electric signals. These control valves operate to control hydraulic pressure flow to the brake mechanism 30 , clutch mechanism 40 and the like in accordance with instructions from the controller 4 . This enables ON-OFF switching of the brake mechanism 30 and clutch mechanism 40 .
  • the controller (ECU) 4 as an electronic control unit incorporates an arithmetic processing unit having a CPU, ROM, RAM and other peripheral circuits, and the CPU includes an engine control ECU 4 a , a hydraulic actuator control ECU 4 b and a motor-generator control ECU 4 c .
  • the multiple ECUs 4 a to 4 c need not be incorporated in the single controller 4 but can instead be provided as multiple discrete controllers 4 corresponding to the ECUs 4 a to 4 c.
  • the controller 4 receives as input signals from, inter alia, the rotational speed sensor 35 for detecting rotational speed of the drum 25 , a vehicle speed sensor 36 for detecting vehicle speed, an accelerator opening angle sensor 37 for detecting accelerator opening angle indicative of amount of accelerator pedal depression, a rotational speed sensor 38 for detecting rotational speed of the engine 1 , and a rotational speed sensor for detecting rotational speed of the first motor-generator 2 .
  • the controller 4 also receives signals from a rotational speed sensor for detecting rotational speed of the second motor-generator 3 , and a hydraulic pressure sensor for detecting hydraulic pressure applied to each hydraulic pressure (brake mechanism 30 , clutch mechanism 40 , etc.).
  • the controller 4 decides drive mode in accordance with a predefined driving force map representing vehicle driving force characteristics defined in terms of factors such as vehicle speed and accelerator opening angle.
  • the controller 4 controls operation of the engine 1 , first and second motor-generators 2 and 3 , the brake mechanism 30 and the clutch mechanism 40 by outputting control signals to, inter alia, an actuator for regulating throttle valve opening, an injector for injecting fuel, the power control unit 5 and the hydraulic pressure control unit 8 (control valve).
  • FIG. 2 is a table showing examples of some drive modes that can be implemented by the drive apparatus 100 according to this embodiment of the present invention, along with operating states of the brake mechanism (BR) 30 , clutch mechanism (CL) 40 , one-way clutch (OWY) 50 and engine (ENG) 1 corresponding to the different modes.
  • BR brake mechanism
  • CL clutch mechanism
  • OTY one-way clutch
  • ENG engine
  • HV mode is subdivided into low mode (HV low mode) and high mode (HV high mode).
  • brake mechanism 30 ON (Engaged), clutch mechanism 40 ON (Engaged), one-way clutch 50 Locked, and engine 1 Operating are indicated by symbol “o”, while brake mechanism 30 OFF (Disengaged), clutch mechanism 40 OFF (Disengaged), one-way clutch 50 Unlocked, and engine 1 Stopped are indicated by symbol “x” .
  • FIG. 3 is a skeleton diagram showing flow of torque transmission in EV mode.
  • FIG. 4 is a skeleton diagram showing flow of torque transmission in W motor mode.
  • FIG. 5 is a skeleton diagram showing flow of torque transmission in series mode.
  • HV mode the vehicle is driven for traveling by motive power produced by the engine 1 and the second motor-generator 3 .
  • the HV low mode corresponds to a mode of wide-open acceleration from low speed
  • the HV high mode corresponds to a mode of normal traveling after EV traveling.
  • the brake mechanism 30 in HV low mode, the brake mechanism 30 is OFF, the clutch mechanism 40 is ON and the engine 1 is operated, in accordance with instructions from the controller 4 .
  • HV high mode the brake mechanism 30 is ON, the clutch mechanism 40 is OFF and the engine 1 is operated, in accordance with instructions from the controller 4 .
  • FIG. 6 is a skeleton diagram showing flow of torque transmission in HV low mode. As shown in FIG. 6 , in HV low mode, some torque output from the engine 1 is transmitted through the first sun gear 11 to the first motor-generator 2 . As a result, the battery 6 is charged by power generated by the first motor-generator 2 , and, in addition, electrical drive power is supplied from the battery 6 to the second motor-generator 3 .
  • FIG. 7 is a skeleton diagram showing flow of torque transmission in HV high mode.
  • HV high mode similarly to in HV low mode, some torque output from the engine 1 , for example, is transmitted through the first sun gear 11 to the first motor-generator 2 .
  • Remainder of torque output from the engine 1 is transmitted through the first ring gear 12 , second carrier 24 and second sun gear 21 to the output shaft 27 .
  • Rotational speed of the output shaft 27 at this time is greater than rotational speed of the second carrier 24 .
  • Torque transmitted to the output shaft 27 is transmitted through the locked one-way clutch 50 to the output gear 51 , and transmitted to the axles 57 together with torque output from the second motor-generator 3 . Therefore, by utilizing torque from the engine 1 and second motor-generator 3 while maintaining sufficient battery residual charge, vehicle running can be achieved at torque that, while lower than that in HV low mode, is higher than that in EV mode. Since rotation of the output shaft 27 is speeded up by the second planetary gear mechanism 20 in HV high mode, running at lower engine speed than in HV low mode can be realized.
  • the drive modes further includes a regeneration mode for generating a regenerative energy by the second motor-generator 3 and a start mode for starting the engine 1 in addition to the drive modes shown in FIG. 2 .
  • FIGS. 8A to 8C are diagrams each showing an example of an alignment chart corresponding to an operation during a process from HV low mode to start mode through EV mode.
  • the first sun gear 11 , first carrier 14 and first ring gear 12 are designated 1 S, 1 C and 1 R, respectively
  • the second sun gear 21 , second carrier 24 and second ring gear 22 are designated 2 S, 2 C and 2 R, respectively.
  • Rotation direction of the first ring gear 12 and second carrier 24 during forward vehicle movement is defined as positive direction.
  • FIGS. 8B and 8C are diagrams each showing an alignment chart as a comparative example of the present embodiment. The alignment chart similar to that in FIG. 8B is obtained in also regeneration mode.
  • the brake mechanism 30 (BR) is turned OFF (released) and the clutch mechanism 40 (CL) is turned ON (engaged).
  • the first carrier 14 (IC) is rotated in positive direction by the engine 1
  • the first motor-generator 2 (MG 1 ) is rotationally driven to generate electricity
  • the first ring gear 12 ( 1 R) rotates in positive direction owing to reaction force acting on the first ring gear 12 .
  • the second sun gear 21 ( 2 S) rotates at same speed as the second carrier 24 ( 2 C) and the vehicle is traveled by this rotational torque and torque of the second motor-generator 3 (MG 2 ).
  • both the brake mechanism 30 (BR) and the clutch mechanism 40 (CL) are turned OFF, as indicated in FIG. 8B .
  • rotational speed of the engine 1 decreases owing to stopping of the engine 1 and rotational speeds of the second carrier 24 ( 2 C) and the second ring gear 22 ( 2 R) decrease under the effects of inertia and friction.
  • rotational speed of the second sun gear 21 ( 2 S) is lowered to below rotational speed of the second motor-generator 3 (MG 2 ) by action of the one-way clutch 50 .
  • Amount of rotational speed decrease in this case is, for example, usually greater for the second ring gear 22 ( 2 R) than for the second sun gear 21 ( 2 S), whereby rotational speed of the second ring gear 22 ( 2 R) comes to fall below rotational speed of the second sun gear 21 ( 2 S). But cases also arise in which rotational speed decrease of the second sun gear 21 ( 2 S) is greater than that of the second ring gear 22 ( 2 R).
  • HV low mode HV low mode after the engine 1 is started in start mode.
  • start mode as indicated in FIG. 8C , the second motor-generator 3 (MG 2 ) is kept rotationally driven in positive direction while the brake mechanism 30 (BR) and clutch mechanism 40 (CL) are both turned ON and rotation of the second sun gear 21 ( 2 S), second ring gear 22 ( 2 R), second carrier 24 ( 2 C) and first ring gear 12 ( 1 R) are inhibited.
  • the first motor-generator 2 (MG 1 ) is rotationally driven in positive direction.
  • the output shaft 1 a of the engine 1 is rotated via the first carrier 14 ( 1 C), thereby starting the engine 1 .
  • FIG. 9 is a cross-sectional diagram showing main components of the drive apparatus 100 in accordance with an embodiment of the present invention, with focus primarily on structural features around the second planetary gear mechanism 20 .
  • direction along the axis CL 1 be defined as lateral (left-right) direction. Based on this definition, the first motor-generator 2 is disposed rightward of the second motor-generator 3 .
  • the second ring gear 22 has a radially extending sidewall 22 a at its left end portion and this sidewall 22 a is rotatably coupled integrally to a radially extending sidewall 25 a of an outer drum 25 through inner radial end splines of the sidewall 22 a .
  • a shaft 25 b of the outer drum 25 connected to inner radial end of the sidewall 25 a is fitted on outer peripheral surface of an output shaft 27 extending leftward from the second sun gear 21 through a roller bearing 28 to be rotatable and axially movable relative to the output shaft 27 .
  • the output shaft 27 is supported through a ball bearing 29 on radially outside of the output shaft 1 a of the engine 1 to be rotatable relative to the output shaft 1 a .
  • a shaft 26 a of an inner drum 26 is installed leftward of the shaft 25 b of the outer drum 25 .
  • the shaft 26 a is coupled through splines to outer peripheral surface of the output shaft 27 to be integrally rotatable with the output shaft 27 .
  • Axial position of the shaft 26 a relative to the output shaft 27 is restricted by a shim and a snap ring installed on end portion of the shaft 26 a.
  • the shaft 25 b of the outer drum 25 that rotates integrally with the second ring gear 22 is located axially adjacent to the shaft 26 a of the inner drum 26 that rotates integrally with the second sun gear 21 .
  • the shaft 25 b is arranged to be axially movable relative to the output shaft 27 .
  • the gears 11 to 13 of the first planetary gear mechanism 10 and the gears 21 to 23 of the second planetary gear mechanism 20 are all configured as helical gears.
  • a helical gear exerts axial load during rotation.
  • the helical gears are configured so as to generate load acting axially rightward through the planetary gear mechanisms 10 and 20 onto the second ring gear 22 when the planetary gear mechanisms 10 and 20 are driven by the engine 1 .
  • HV mode e.g., HV low mode
  • the first motor-generator 2 drives the engine 1 through the first planetary gear mechanism 10 (first sun gear 11 and first carrier 14 ). Therefore, as indicated by arrow B in FIG. 9 , load from the second ring gear 22 acts axially leftward through the planetary gear mechanisms 10 and 20 onto the outer drum 25 . As a result, the shaft 25 b is pushed leftward so that its left end surface abuts on right end surface of the shaft 26 a . Therefore, as shown in FIG.
  • FIG. 10 is a flowchart illustrating an example of processing performed by the controller 4 of the drive apparatus 100 according an embodiment of the present invention ( FIG. 1 ).
  • the processing shown in this flowchart is started when, for example, HV mode (either HV low mode or HV high mode) is selected and is thereafter repeatedly performed at predetermined intervals.
  • HV mode either HV low mode or HV high mode
  • the processing is explained for the case of HV low mode being selected as the HV mode.
  • S 1 processing Step
  • signals from the vehicle speed sensor 36 and the accelerator opening angle sensor 37 are used to determine whether one or the other of regeneration mode and EV mode is instructed.
  • whether one or the other of regeneration mode and EV mode is instructed can be decided by determining whether accelerator pedal depression is equal to or less than a predetermined value (e.g., 0).
  • a predetermined value e.g., 0
  • drive mode is switched to the one of regeneration mode and EV mode determined in S 1 to be instructed.
  • engine drive is terminated by stopping injector fuel injection of the engine 1 and electric power generation by the first motor-generator 2 is temporarily discontinued.
  • power generation by the first motor-generator 2 can be continued.
  • drive mode is switched to regeneration mode in S 2 , regenerative energy is obtained with the second motor-generator 3 .
  • a signal from the rotational speed sensor 39 is used to determine whether rotational speed of the first motor-generator 2 (MG 1 rotational speed) is greater than predetermined value N 1 (e.g., 0). This determination amounts to determining whether regenerative energy can be obtained with the first motor-generator 2 . Should MG 1 rotational speed be negative, energy regeneration is determined to be impossible.
  • N 1 e.g., 0
  • rotational speed of the first carrier 14 ( 1 C) integral with the output shaft 1 a does not easily change and rotational speed of the first ring gear 12 ( 1 R) around the first carrier 14 as pivot point increases.
  • Rotational speed of the second carrier 24 ( 2 C) therefore increases, which in turn also leads to increased rotational speed of, for example, the second ring gear 22 ( 2 R). This decreases differential rotational speed ⁇ N between the second sun gear 21 ( 2 S) and the second ring gear 22 ( 2 R).
  • a signal from the rotational speed sensor 38 is used to determine whether rotational speed of the engine 1 (ENG rotational speed) is greater than predetermined value N 2 .
  • Predetermined value N 2 is determined in advance, empirically for example, to correspond to minimum rotational speed of the oil pump 61 enabling discharge of engaging pressure oil required for engaging the clutch mechanism 40 .
  • a control signal is output for driving the electric pump 62 to deliver engaging pressure oil required for engaging the clutch mechanism 40 .
  • a control signal is output to a control valve of the hydraulic pressure control unit 8 in order to deliver discharge oil from the oil pump 61 or the electric pump 62 to the piston of the clutch mechanism 40 . This engages (turns ON) the clutch mechanism 40 . Therefore, as indicated by the alignment chart of the drive apparatus 100 according to the present embodiment shown as an example in FIG. 11B , differential rotational speed ⁇ N between the second sun gear 21 ( 2 S) and the second ring gear 22 ( 2 R) falls to or below predetermined value ⁇ N 1 .
  • S 10 processing is suspended until restarting of the engine 1 is instructed, namely, is made to stand by until a start mode flag rises.
  • a start flag rises from the state of S 10 when, for example, switching to HV low mode is instructed based on signals from the vehicle speed sensor 36 and the accelerator opening angle sensor 37 .
  • the engine 1 is started by simultaneous engagement of the brake mechanism 30 and clutch mechanism 40 and rotation of the output shaft 1 a of the engine 1 by the first motor-generator 2 .
  • HV low mode being selected as HV mode
  • processing similar to that of FIG. 10 is also performed when HV high mode is selected as HV mode. Namely, in the case where HV high mode is switched to regeneration or EV mode, the first motor-generator 2 performs regeneration when MG rotational speed is greater than predetermined value N 1 (S 4 ). Therefore, as indicated by the alignment chart after switching from HV high mode to regeneration or EV mode shown as an example in FIG.
  • this increases rotational speed of the first ring gear 12 ( 1 R) around the first carrier 14 ( 1 C) as pivot point, thereby reducing differential rotational speed ⁇ N between the second sun gear 21 ( 2 S) and the second ring gear 22 ( 2 R) (broken line ⁇ solid line).
  • the clutch mechanism 40 is turned ON when differential rotational speed ⁇ N between the second sun gear 21 and the second ring gear 22 is greater than predetermined value ⁇ N 1 (S 9 ). Therefore, as indicated in FIG. 12B , differential rotational speed ⁇ N between the second sun gear 21 ( 2 S) and the second ring gear 22 ( 2 R) falls to or below predetermined value ⁇ N 1 .
  • differential rotational speed ⁇ N can therefore be lowered to or below predetermined value ⁇ N 1 , generation of greater than a predetermined level of friction heat at contact region between the outer drum 25 and the inner drum 26 can be reliably prevented.
  • predetermined value N 2 predetermined value N 2 in this case, the electric pump 62 is not driven and the clutch mechanism 40 is engaged by discharge oil from the oil pump 61 (S 7 ⁇ S 9 ). Electric power consumption can therefore be saved.
  • the drive apparatus 100 of the hybrid vehicle includes: the engine 1 as its internal combustion engine; the first motor-generator 2 ; the first planetary gear mechanism 10 including the helical gears and connected to the engine 1 and the first motor-generator 2 ; the outer drum 25 integral with the second ring gear 22 to receive input of torque output from the first planetary gear mechanism 10 through the second carrier 24 ; the inner drum 26 integral with the second sun gear 21 and arranged axially adjacent to the outer drum 25 to be capable of rotation relative to the outer drum 25 ; the clutch mechanism 40 for integrally engaging or disengaging the outer drum 25 and inner drum 26 ; the output shaft 27 , one-way clutch 50 and other components forming the first and second power transmission paths 71 and 72 for transmitting torque output from the inner drum 26 to the drive wheels 101 ; the second motor-generator 3 connected to the first power transmission path 71 ; and the controller 4 for selecting drive mode from among multiple drive modes including HV mode using the engine 1 and second motor-generator 3 as drive sources, EV mode adapted to stop
  • the shaft 25 b of the outer drum 25 is axially movably arranged so as to separate from right end portion of the shaft 26 a of the inner drum 26 by a load (a first load) acting through the planetary gear mechanisms 10 and 20 toward one axial side (a first direction) at engine-drive time when the engine 1 drives the first planetary gear mechanism 10 and to approach right end portion of the shaft 26 a of the inner drum 26 by a load (a second load) acting through the planetary gear mechanisms 10 and 20 toward other axial side (a second direction) at engine-driven time when engine 1 is driven through the first planetary gear mechanism 10 (first sun gear 11 and first carrier 14 ) ( FIG. 9 ).
  • the controller 4 controls the first motor-generator 2 so as to generate regenerative energy, and after that, when drive mode switched to start mode, the controls the first motor-generator 2 and the clutch mechanism 40 so as to engage the clutch mechanism 40 and output drive torque from the first motor-generator 2 ( FIG. 10 ).
  • This configuration minimizes differential rotational speed ⁇ N arising between the second sun gear 21 and the second ring gear 22 when drive mode switches from HV mode to regeneration or EV mode.
  • a structure can therefore be realized that inhibits heat generation by friction between the shaft 25 b of the outer drum 25 and the shaft 26 a of the inner drum 26 when an axial load on the inner drum 26 side acts on the outer drum 25 through the first planetary gear mechanism 10 in start mode.
  • This eliminates need to provide axial bearings or other additional components between the shaft 25 b and shaft 26 a for the purpose of avoiding frictional sliding between the shafts 25 b and 26 a , it helps to minimize parts count.
  • the lack of a need for axial bearing(s) between the shafts 25 b and 26 a prevents elongation of the drive apparatus 100 in axial direction.
  • the reduction of heat generation between the shafts 25 b and 26 a facilitates adjustment of clearance between the shafts 25 b and 26 a by means of shims.
  • the drive apparatus 100 of the hybrid vehicle further includes the rotational speed sensors 35 , 38 and 39 used to detect rotational speed difference (differential rotational speed ⁇ N) between the second ring gear 22 (outer drum 25 ) and the second sun gear 21 (inner drum 26 ) ( FIG. 1 ).
  • rotational speed difference difference between the second ring gear 22 (outer drum 25 ) and the second sun gear 21 (inner drum 26 ) ( FIG. 1 ).
  • Differential rotational speed ⁇ N can therefore be reliably held at or below predetermined value ⁇ N 1 in regeneration or EV mode even when differential rotational speed ⁇ N becomes greater than predetermined value ⁇ N 1 because regeneration cannot be performed with the first motor-generator 2 or when regeneration can be performed but differential rotational speed ⁇ N nevertheless fails to fall to or below predetermined value ⁇ N 1 . This ensures minimization of heat generation caused by frictional sliding between the shafts 25 b and 26 a.
  • the drive apparatus 100 of the hybrid vehicle includes: the first planetary gear mechanism 10 including the first sun gear 11 connected to the first motor-generator 2 , the first ring gear 12 and the first carrier 14 connected to the engine 1 ; and the second planetary gear mechanism 20 including the second sun gear 21 provided integrally with the inner drum 26 , the second ring gear 22 provided integrally with the outer drum 25 , and the second carrier 24 connected to the first ring gear 12 ( FIGS. 1 and 9 ).
  • the drive apparatus 100 of the hybrid vehicle additionally includes the brake mechanism 30 for braking and releasing the second ring gear 22 ( FIG. 1 ).
  • the controller 4 additionally controls engagement of the brake mechanism 30 in accordance with selected drive mode. This enables switching among various drive modes including HV low mode and HV high mode.
  • the outer drum 25 rotating integrally with the second ring gear 22 of the second planetary gear mechanism 20 is configured as a first rotor
  • the inner drum 26 rotating integrally with the second sun gear 21 of the second planetary gear mechanism 20 is configured as a second rotor.
  • the configurations of the first rotor and the second rotor are not limited to the aforesaid configurations.
  • the first rotor and the second rotor are arranged adjacent to each other in axial direction and provided so as to be integrally engaged or disengaged with a clutch mechanism, and further the first rotor is arranged movably in the axial direction so as to separate from the second rotor when the internal combustion engine drives and so as to approach the second rotor when the internal combustion engine is driven, the first rotor and the second rotor can be of any configuration.
  • the controller 4 as an electronic control unit is configured so as to switch drive mode to any one of a plurality of drive modes including HV mode including HV low mode and HV high mode (a first mode), regeneration or EV mode (a second mode) and start mode (a third mode), etc.
  • the drive mode is not limited to the aforesaid modes.
  • a mode generating an engine braking may be included in the plurality of drive modes.
  • the mode generating the engine braking is included in the first mode because the engine 1 is driven, similar to start mode. Therefore, even when engine braking generates through regeneration or EV mode, the advantageous effect similar to the aforesaid advantageous effect can be obtained.
  • differential rotational speed ⁇ N rotational speed difference
  • ⁇ N rotational speed difference
  • the configuration of a speed difference detector is not limited to the aforesaid configuration.
  • the first and second power transmission paths 71 and 72 from the speed change mechanism 70 to the drive wheels 101 are generated by the output shaft 27 , the one-way clutch 50 , and so on.
  • the configuration of a component that generates a power transmission path transmitting a torque output from the second rotor to a drive wheel is not limited to the aforesaid configuration.
  • the brake mechanism 30 and the clutch mechanism 40 of multi-plate wet type are used.
  • the configurations of a brake mechanism and a clutch mechanism are not limited to the aforesaid configurations.
  • the first planetary gear mechanism 10 and the second planetary gear mechanism 20 are arranged in left-right direction.
  • the arrangement of planetary gear mechanisms is not limited to the aforesaid configuration.
  • the present invention can be also applied to a drive apparatus including a single planetary gear mechanism connected to an internal combustion engine and a first motor-generator,
  • the present invention can be configured as a drive method of a hybrid vehicle, including selecting any of a plurality of drive modes and controlling the engine 1 , the first motor-generator 2 , the second motor-generator 3 and the clutch mechanism 40 in accordance with the selected drive mode.
  • the present invention can be configured as a drive method of a hybrid vehicle, including controlling the first motor-generator 2 and the clutch mechanism 40 so that the first motor-generator 2 generates a regenerative energy when the drive mode is switched from the first mode in which the engine 1 drives the planetary gear mechanism 10 to the second mode in which the engine 1 is stopped, and then so that the clutch mechanism 40 is engaged and the first motor-generator 2 generates a drive torque when the drive mode is switched to the third mode in which the engine 1 is driven through the planetary gear mechanism 10 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Arrangement Of Transmissions (AREA)
US15/931,587 2019-05-23 2020-05-14 Hybrid vehicle drive apparatus Active 2040-06-05 US11173915B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210402864A1 (en) * 2020-06-25 2021-12-30 Borgwarner Inc. Transmission system for use in a hybrid vehicle and method of controlling the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019156016A (ja) * 2018-03-09 2019-09-19 本田技研工業株式会社 ハイブリッド車両の駆動装置
CN112677947B (zh) * 2021-03-11 2021-05-18 天津所托瑞安汽车科技有限公司 一种比例继动阀及气压线控制动系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020117860A1 (en) * 1998-09-09 2002-08-29 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Power train for a motor vehicle
US20030104900A1 (en) * 2001-11-30 2003-06-05 Honda Giken Kogyo Kabushiki Kaisha Automotive internal combustion engine control system
JP2004278367A (ja) * 2003-03-13 2004-10-07 Honda Motor Co Ltd ハイブリッド車両用内燃機関制御システム
US20090082151A1 (en) * 2005-06-24 2009-03-26 Toyota Jidosha Kabushiki Kaisha Drive device for vehicle and method of assembling the same
JP6015410B2 (ja) 2012-12-14 2016-10-26 トヨタ自動車株式会社 ハイブリッド車両の動力伝達装置及びハイブリッドシステム
US20190276006A1 (en) * 2018-03-09 2019-09-12 Honda Motor Co., Ltd. Hybrid vehicle drive system
US20190329642A1 (en) * 2018-04-25 2019-10-31 Toyota Jidosha Kabushiki Kaisha Vehicle drive device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009107491A (ja) * 2007-10-30 2009-05-21 Aisin Aw Co Ltd 車両用駆動装置
CN104379423A (zh) * 2012-06-15 2015-02-25 丰田自动车株式会社 混合动力车辆用驱动装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020117860A1 (en) * 1998-09-09 2002-08-29 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Power train for a motor vehicle
US20030104900A1 (en) * 2001-11-30 2003-06-05 Honda Giken Kogyo Kabushiki Kaisha Automotive internal combustion engine control system
JP2004278367A (ja) * 2003-03-13 2004-10-07 Honda Motor Co Ltd ハイブリッド車両用内燃機関制御システム
US20090082151A1 (en) * 2005-06-24 2009-03-26 Toyota Jidosha Kabushiki Kaisha Drive device for vehicle and method of assembling the same
JP6015410B2 (ja) 2012-12-14 2016-10-26 トヨタ自動車株式会社 ハイブリッド車両の動力伝達装置及びハイブリッドシステム
US20190276006A1 (en) * 2018-03-09 2019-09-12 Honda Motor Co., Ltd. Hybrid vehicle drive system
US20190329642A1 (en) * 2018-04-25 2019-10-31 Toyota Jidosha Kabushiki Kaisha Vehicle drive device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210402864A1 (en) * 2020-06-25 2021-12-30 Borgwarner Inc. Transmission system for use in a hybrid vehicle and method of controlling the same
US11485216B2 (en) * 2020-06-25 2022-11-01 Borgwarner Inc. Transmission system for use in a hybrid vehicle and method of controlling the same

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